What is the three-phase servo transformer used for?

1. The function of the three-phase servo transformer: change the AC voltage from 380 volts to 220 volts, and the input of each phase of the three-phase AC servo is 220 volts, thus changing the voltage output and meeting the power consumption standards of ordinary appliances;

2. Principle of three-phase servo transformer: When AC servo motor has no control voltage, there is only pulsating magnetic field generated by excitation winding in the stator, and the rotor is stationary. When there is a control voltage, a rotating magnetic field is generated in the stator and the rotor rotates in the direction of the rotating magnetic field. Under the condition of constant load, the speed of the motor changes with the control voltage. When the phase of the control voltage is opposite, the servo motor will reverse and output a stable point voltage.